Llythyrau, 1924-1972, oddi wrth nifer o ohebwyr gwahanol at Dr Iorwerth Hughes Jones yn bennaf (ceir rhai llythyrau at ei wraig a'i dad). Mae'r llythyrau hyn yn trafod amrywiol bynciau megis materion celfyddydol a llenyddol; pynciau hanesyddol ac archaeolegol; enwau lleoedd; materion meddygol; gwleidyddiaeth, ac yn arbennig, gwleidyddiaeth Gymreig, gan gynnwys yr ymgyrch dros Senedd i Gymru, materion Plaid Cymru a llwyddiant etholaethol Dr Iorwerth Hughes Jones; materion cyhoeddus yr oedd Dr Iorwerth Hughes Jones yn ymwneud â hwy, megis ymgyrchoedd lleol, a'i aelodaeth ag amrywiol cymdeithasau a mudiadau; ceir cyfeiriadau at yr Ail Ryfel Byd mewn rhai llythyrau; ac yn ogystal â hyn oll fe geir llythyrau sydd yn fwy personol eu naws.

Llythyrau, 1911-1969, a anfonwyd at D. J. Williams, gan gynnwys ffeiliau unigol ar gyfer cyfeillion agos ato fel Saunders Lewis, Kate Roberts a Lewis Valentine, a ffrindiau oedd yn filwyr adeg y Rhyfel Byd Cyntaf. Ceir llythyrau o gefnogaeth adeg achos Penyberth a llythyrau'n trafod materion gwleidyddol megis ei waith gyda Phlaid Cymru. Mae nifer yn mynegi gwerthfawrogiad o'i waith fel llenor a llawer yn ymwneud â'i weithgareddau fel siaradwr gwadd a darlithydd poblogaidd. Yn fynych ceir drafft o ateb D. J. Williams.

Papurau'r cymdeithasegydd Alwyn D. Rees, 1911-1974, yn cynnwys papurau'n ymwneud â Phrifysgol Cymru, yn bennaf â Choleg Prifysgol Cymru, Aberystwyth, 1920au-1974, gan gynnwys papurau'n ymwneud â'r comisiwn a sefydlwyd i archwilio strwythur ffederal Prifysgol Cymru yn y 1960au; papurau ynglŷn â lle'r Gymraeg yn y Brifysgol a'r ymgyrch i sefydlu neuadd Gymraeg i fyfyrwyr yn Aberystwyth,1967-1974; papurau'n ymwneud â llyfrau, erthyglau a darlithoedd Alwyn D. Rees, 1933-1973, a Chymdeithas yr Iaith Gymraeg, [c.1964]-1974; papurau'n ymwneud â Barn, 1966-1967; papurau'n ymwneud â darlledu yng Nghymru, 1938-1974; papurau'n ymwneud â'r diwydiant llechi yng Nghymru,1946; papurau'n ymwneud â gwleidyddiaeth yng Nghymru, 1911-1974; gohebiaeth gyffredinol, 1935-1974; a phapurau a gohebiaeth bersonol , 1930-1974 = Papers of the sociologist Alwyn D. Rees, 1911-1974, including papers relating to the University of Wales, mainly the University College of Wales, Aberystwyth, 1930s-1974, including papers relating to the commission established to examine the federal structure of the University of Wales in the 1960s; papers concerning the place of the Welsh language in the University and the campaign to establish a Welsh student hostel at Aberystwyth, 1967-1974; papers relating to the University of Malta, 1940-1951; Alwyn D. Rees's research papers, 1933-1973; papers relating to Alwyn D. Rees's books, articles and lectures, and further related research papers assembled by him, 1925-1974; papers relating to the Welsh language, 1952-1974, and 'Cymdeithas yr Iaith Gymraeg', [c. 1964]-1974; papers relating to 'Barn', 1966-1975; papers relating to broadcasting in Wales, 1938-1974; papers relating to the Welsh slate industry, 1946; papers relating to politics in Wales, 1911-1974; general correspondence, 1935-1974; and personal papers and correspondence, 1930-1974.

Nodiadau darlithoedd, yn bennaf ar gyfer dosbarthiadau allanol ar hanes Cymru, 1943-1975; papurau ynglŷn ag ymchwil a chyhoeddiadau Frank Price Jones, 1947-1975, yn cynnwys drafftiau erthyglau ac adolygiadau, gwahanlithoedd a chopïau printiedig o'i waith cyhoeddedig; deunydd yn ymwneud ag erthyglau awduron eraill, 1932-1975; papurau, 1943-1975, yn deillio o waith Frank Price Jones ar gyfer y cyfryngau, y cynnwys sgriptiau radio a theledu, ac i bapurau newydd; papurau gwleidyddol, 1910-1975, yn cynnwys gohebiaeth, torion o'r wasg, pamffledi ymgeiswyr ac anerchiadau etholiadol, canlyniadau etholiadau, deunydd yn ymwneud ag Ymgyrch Senedd i Gymru yn y 1950au cynnar a Chomisiwn y Cyfansoddiad, 1969-1970; papurau, 1947-1975, ynghylch y gwaith cyhoeddus a gyflawnodd Frank Price Jones, yn cynnwys deunydd yn ymwneud â'r Eisteddfod Genedlaethol, 1922-1974; deunydd, 1966-1975, yn ymwneud â Phatagonia; papurau,1966-1975, yn deillio o waith Frank Price Jones ar gyfer Panel Cyfieithu'r Swyddfa Gymreig, Pwyllgor Amgueddfa Werin Cymru, 1956-1967, ac Urdd y Graddedigion Prifysgol Cymru, 1963-1975; gohebiaeth gyffredinol, 1941-1975, yn cynnwys grŵp mawr o lythyrau,1941-1975, oddi wrth Iorwerth C. Peate, cefnder Frank Price Jones; ac amrywiol. = Lecture notes mainly for extra-mural classes in Welsh history, 1943-1975; papers concerning Frank Price Jones's research and publications, 1947-1975, including drafts of articles and reviews, offprints and printed copies of his published work; material relating to articles by other authors, 1932-1975; papers, 1943-1975, deriving from Frank Price Jones's work for the media, including television and radio scripts, and for newspapers; political papers, 1910-1975, including correspondence, press cuttings, candidates' pamphlets and election addresses, election results, material relating to the Parliament for Wales Campaign of the early 1950s and to the Commission on the Constitution of 1969-1970; papers, 1947-1975, concerning the public work undertaken by Frank Price Jones, including in relation to the National Eisteddfod, 1922-1974; material, 1966-1975, relating to Patagonia; papers, 1966-1975, deriving from Frank Price Jones's work for the Welsh Office Translation Panel, the Committee of the Welsh Folk Museum, 1956-1967, and for the Guild of Graduates of the University of Wales, 1963-1975; general correspondence, 1941-1975, including a large group of letters, 1941-1975, from Iorwerth C. Peate, a cousin to Frank Price Jones; and various miscellanea.

Papurau, 1960-1995, yn ymwneud â Chymdeithas yr Iaith Gymraeg, a gasglwyd gan Dylan Phillips, gan gynnwys papurau Gareth Miles, 1960-1979, Dafydd Iwan, 1967-1987, Rheinallt Llwyd, 1968-1995, ac Ann Ffrancon,1967-1984, sydd yn ymwneud yn arbennig â'r 1960au a'r 1970au, ac yn cynnwys gohebiaeth yn bennaf, ynghyd â deunydd yn ymwneud ag ymgyrchoedd yn Gymdeithas ac ychydig bapurau gweinyddol = Papers, 1960-1995, collected by Dylan Phillips relating to Cymdeithas yr Iaith Gymraeg, comprising papers of Gareth Miles, 1960-1979, Dafydd Iwan, 1967-1987, Rheinallt Llwyd, 1968-1995, and Ann Ffrancon, 1967-1984, relating especially to the 1960s and 1970s, and consisting mainly of correspondence, together with material relating to the Society's campaigns and some administrative papers.

Papurau ymchwil ychwanegol Dylan Phillips, yn cynnwys gohebiaeth, papurau swyddogol a thorion o'r wasg, 1983-1992, wedi eu crynhoi gan Mr John Phillips. Nid yw'r rhain wedi eu catalogio eto.

Papurau, [1951]-[1956], 1984, yn ymwneud â'r ymgyrch i gael Senedd i Gymru. = Papers, [1951]-[1956], 1984, relating to the Parliament for Wales campaign.
Deunydd ychwanegol yn ymwneud â'r ymgyrch; Medi 2024.

Papurau, 1922-1966, yn ymwneud â Phlaid Cymru yn genedlaethol ac yn lleol yn Sir Benfro gan gynnwys llyfrau cofnodion Pwyllgor Rhanbarth Dyfed, 1938-1947, a rhestri etholwyr Abergwaun a rhestr o aelodau'r Blaid yn 1966 yn Sir Benfro.

The fonds comprises the papers of Robin Reeves including general subject files, 1967-1987; files concerning subjects of Welsh interest, 1973-1999; files concerning political subjects, 1974-1995; files relating to various organisations, societies, public bodies, newspapers etc., 1975-1996; files relating to various geographical areas in Wales, the British Isles and overseas, 1972-1995; files reflecting his literary interests and activities, 1978-1999; and miscellaneous papers, 1962-2001.

Some sixty letters, 1886-1913, to Alfred Thomas, 1st baron Pontypridd, relating mainly to national and local politics and to secondary and university education in Wales. The correspondents include Sir Edward Anwyl (1) 1905, Henry Austin Bruce, Lord Aberdare (1) 1886, Sir D. Brynmor Jones (2) 1900, J. Viriamu Jones (3) 1900, Sir Isambard Owen (1) 1893, Robert Threshie Reid, Lord Loreburn (4) 1908-1911, Lord Rendel (2) 1899, 1902, and Charles Vaughan, dean of Llandaf (6) 1888-1897.

Some thirty letters, 1925-1940, from the Dutch scholar Theodor Max Chotzen to Dr E. D. Jones. Written mainly in Welsh, they contain personal news, details of the writer's publications, references to contemporary Welsh scholars, and observations on political events in Wales. Also included is a letter, 1946, from his widow containing information concerning her husband's imprisonment by the Germans and subsequent death on 27 February 1945.

The political diaries of Lord Roberts of Conwy from 1970 to 1996 divided into 18 volumes. The diaries cover most of Lord Roberts' time as Member of Parliament for Conwy and his entire career at the Welsh Office and include letters, newpaper cuttings and pictures added by Lord Roberts. Many subject are covered including the establishment of S4C, Welsh language legislation, inward investment, the Falklands War, the Gulf War, Northern Ireland, the bombing of the Conservative Party conference in Brighton by the IRA in 1984, general elections and the European Union.

A manuscript address, in Welsh, February 1964, by T. I. Ellis, on Welsh politicians and politics in the previous century; it was delivered at a meeting of Cymdeithas y Bedol, 6 March 1964.

The series contains letters with a mixture of personal and professional news. Many of the letters refer to matters relating to the University of Wales and the individual colleges: academic matters, research, appointments and buildings. There are also numerous references to developments in secondary education in Wales and to relations between the schools and the university. Some of the letters arrange meetings with O. M. Edwards. There are a few references to contemporary political life.

The series comprises correspondence and papers relating to the government and local government of Wales including the devolution campaigns.

Papers collected by John Bryn Roberts, including correspondence, 1830-1887; legal certificates, 1863-1897; diaries, 1838-1930, kept by Bryn Roberts and some other members of the Roberts family; photographs, [c. 1880]-1924; notes on legal cases and topics, [c. 1902]-[c. 1921]; letters, 1888-1926, from John Bryn Roberts to the press; newspaper reports transcribed, 1883-1905; notes for his speeches, 1885-1905; notes on political topics, [c.1892]-[1926]; general notes, [1860]-[1894]; election addresses, 1885-1924; political leaflets and pamphlets, 1880-1927; official publications, 1889-1927; legal publications, 1863-1930; miscellaneous printed matter, 1883-1925; Calvinistic Methodist papers, 1844-1928; papers relating to the University of Wales, mainly the University College of North Wales, Bangor, 1882-1926; newspaper and magazine cuttings, 1874-1929; newspapers and periodicals, 1902-1928; bills and receipts, 1781-1926; notebooks and account books, 1833-1900.

Papers relating to the life and career of Edward Morgan Humphreys, including letters to E. Morgan Humphreys, from several prominent Welsh figures, 1900x1955, relating to professional matters, such as his articles and contributions to newspapers, requests for articles, radio talks, addresses, literary works, public appointments, his involvement with the eisteddfod and various committees; together with some letters relating to personal affairs, politics and literary matters and letters written to him in his role as an editor; miscellaneous and family ('Dyffryn') correspondence, which are mostly letters of the families of E. Morgan Humphreys' great-grandfather, the Rev Richard Humphreys, and of his grandfather, the Rev Edward Morgan, [1800]x1953; articles, radio scripts and addresses by E. Morgan Humphreys, 1902x1955; together with some personal and family papers, 1841x1955; articles, poetry, adjudications and letters to the editor of Y Genedl etc., by T. Gwynn Jones, 1890x1949; and other miscellaneous papers accumulated by E. Morgan Humphreys, [1762]x1955. Some of the family correspondence was published in 'Some Nineteenth Century Letters', in The Transactions of the Honourable Society of Cymmrodorion, 1925-1926.

Papers, 1976-1996, of political interest, including copies of speeches of various politicians, 1976-1996; miscellaneous papers, 1981-1994, including interview notes, drafts of newspaper articles, television news scripts, notes from Rhodri Morgan MP and Sir Bernard Braine MP; press releases, 1982-1995; miscellaneous papers, [c. 1980]-1992, concerning Welsh matters, including the Welsh language, Welsh language broadcasting, parliamentary constituency boundaries in Gwent, the Welsh Office, road tolls, the National Museum of Wales, the distribution of a political newspaper, Y Glorian, in Rhondda schools, devolution, Labour Party Young Socialists; printed parliamentary debates, 1977-1994; House of Commons reports, 1986-1992; and miscellaneous printed material, 1993-1995. Additional Papers of political interest, from the late 1980s to 2007, accumulated by the donor as Lobby Correspondent for the Community News Service, at the House of Commons. This additional group remains uncatalogued.

The papers comprise correspondence files, 1918-1982, among them general and political letters to Goronwy Roberts and constituency correspondence; subject files, 1913-1981, including papers concerning foreign affairs (some deriving from Goronwy Roberts's trips abroad), domestic politics, Welsh politics and matters relating to Wales, and files of material concerning Caernarfonshire; various personalia, 1918-1982; and miscellaneous papers, 1900-1997, including printed items and press cuttings.

The series comprises miscellaneous correspondence and papers, 1913-1917 and 1941-1981, relating to Welsh politics and Welsh affairs, many concerning devolution, the Welsh slate industry, broadcasting and publishing.

Speech notes and related material regarding the 1999 St David's Day debate which took place 26 February of that year.